Invasive alien species are among the most important, least controlled, and least reversible of human impacts on the world’s ecosystems, with negative consequences affecting biodiversity and socioeconomic systems. Species distribution models have become a fundamental tool in assessing the potential spread of invasive species in face of their native counterparts. In this study we compared two dif...

This article describes the use of Gaussian Processes in model reduction techniques with application to inverse problems. Mainly, the work is focused on the proper construction of the model approximation, namely on training process based on minimal number of learning samples, by making use of automatic samples selection through computed standard deviation of model prediction. An example of appli...

Fusion cross section measurements in nuclear reactions of heavy nuclei consistently fall below model predictions at energies both well below and above the fusion barrier. Understanding the physical mechanisms leading to this fusion suppression has been one of the major challenges in nuclear reaction physics [6, 7, 1]. It is crucial for a consistent understanding of nuclear reactions involving b...

The measurement of deformations, displacements, strain fields and surface defects in many material tests in Civil Engineering is a very important issue. However, these measurements require complex and expensive equipment and the calibration process is difficult and time consuming. Image processing could be a major improvement, because a simple camera makes the data acquisition and the analysis ...

Article history: Received 5 October 2007 Received in revised form 11 April 2008 Accepted 11 April 2008 Available online 20 April 2008 We report radiocarbon measurements of dissolved inorganic carbon (DIC) in surface water samples collected daily during cruises to the central North Pacific, the Sargasso Sea and the Southern Ocean. The ranges of ΔCmeasurements for each cruise (11–30‰) were larger...

We present multiscale models of cancer tumor invasion with components at the molecular, cellular, and tissue levels. We provide biological justifications for the model components, present computational results from the model, and discuss the scientific-computing methodology used to solve the model equations. The models and methodology presented in this paper form the basis for developing and tr...

Some issues are considered which arise when template matching is used to identify cells in differential interference contrast (DIC) microscope images. An automatic method of counting and sizing the cells in such images is proposed and two examples given. Template matching is complex due to the nature of DIC images, namely the way in which light is captured across the image. Further complication...

A study of the application of two full field optical strain analysis techniques to aircraft standard carbon fibre composites is carried out. The goal of the work is to assess the feasibility of using the techniques on full scale tests of secondary sandwich structure aircraft panels. The work concentrates on two techniques: Digital Image Correlation (DIC) and Thermoelastic Stress Analysis (TSA)....

Digital Image Correlation (DIC) is a powerful technique to provide full-field displacement measurements for mechanical tests of materials and structures. The displacement fields may be further processed as an entry for identification procedures giving access to parameters of constitutive laws. A new implementation of a Finite Element based Integrated Digital Image Correlation (I-DIC) method is ...

The stable carbon isotope composition of dissolved inorganic carbon (δ13C-DIC) can be used to quantify fluxes within the carbon system. For example, knowing the δ13C signature of the inorganic carbon pool can help in describing the amount of anthropogenic carbon in the water column. The measurements can also be used for evaluating modeled carbon fluxes, for making basin-wide estimates of anthro...